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Combustion studies for high speed direct injection diesel engines under low temperature cold start conditions

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Combustion studies for high speed direct injection diesel engines under low temperature cold start conditions

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dc.contributor.advisor García Oliver, José María es_ES
dc.contributor.author Ramírez Hernández, José Gustavo es_ES
dc.date.accessioned 2012-07-19T06:50:02Z
dc.date.available 2012-07-19T06:50:02Z
dc.date.created 2012-06-29T08:00:00Z es_ES
dc.date.issued 2012-07-19T06:49:57Z es_ES
dc.identifier.uri http://hdl.handle.net/10251/16690
dc.description.abstract Road transportation sector faces nowadays the challenge of satisfying the growing demands for mobility and at the same time to reduce its negative impact on environment. The panorama for the future is to reduce to zero the tank-to-wheel emissions levels with electric vehicles. Nevertheless, the extended use and massive production of this kind of vehicles is compromised due to different factors. On the one hand, the technology has to keep evolving in order to improve its reliability and to reduce acquisition costs. And on the other hand, cities, legislations and users have to get ready in order to make an appropriate use of these vehicles. What will happen in short and medium term is the transition from current vehicles, powered by internal combustion engines, to 100% electric cars. For this transition, diesel engines will continue having an extended use, or even more, due to their capacity of accomplishing with emissions legislations with low fuel consumption. To be competitive, diesel engine technology has to continue improving in order to satisfying markets requirements being respectful with environment. Cold start is one of the most problematic combustion phases for diesel engines. During this phase, a large proportion of pollutants are produced within the cylinder due to misfiring and incomplete combustion due to the low engine temperatures. Furthermore, exhaust after-treatment devices work inefficiently since their minimum operation temperatures cannot be reached. In addition to this, at temperatures below 0ºC the possibility of continuous misfiring could actually impede the engine start. This is the combustion phase on which this study has been focused. Different authors have made efforts to give directions in pro of cold start combustion optimization. But these studies are scarce and it is missed a fundamental understanding of how diesel combustion is under this conditions. Knowing this, the planned objective for this thesis is to contribute to the understa es_ES
dc.language Inglés es_ES
dc.publisher Universitat Politècnica de València es_ES
dc.rights Reserva de todos los derechos es_ES
dc.source Riunet es_ES
dc.subject Combustión es_ES
dc.subject Diesel es_ES
dc.subject Arranque es_ES
dc.subject Frío es_ES
dc.subject Autoencendido es_ES
dc.subject Visualización es_ES
dc.subject Experimental es_ES
dc.subject Análisis es_ES
dc.subject Inyección es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Combustion studies for high speed direct injection diesel engines under low temperature cold start conditions
dc.type Tesis doctoral es_ES
dc.identifier.doi 10.4995/Thesis/10251/16690 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Ramírez Hernández, JG. (2012). Combustion studies for high speed direct injection diesel engines under low temperature cold start conditions [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/16690 es_ES
dc.description.accrualMethod Palancia es_ES
dc.type.version info:eu-repo/semantics/acceptedVersion es_ES
dc.relation.tesis 3836 es_ES


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